초록 ▼

A structural member for a machine tool is formed of a nonmetallic substance, e.g. cement, concrete cement or ceramic, having discrete solid objects, e.g. fibers, filaments, chips, fragments and/or particles, of a metal, carbon, ceramic, cermet and/or plastic dispersively distributed therein as reinf

A structural member for a machine tool is formed of a nonmetallic substance, e.g. cement, concrete cement or ceramic, having discrete solid objects, e.g. fibers, filaments, chips, fragments and/or particles, of a metal, carbon, ceramic, cermet and/or plastic dispersively distributed therein as reinforcing elements. Metallic frames may be embedded in the nonmetallic substrate to form a skeleton for the member.

대표청구항 ▼

1. A method of making a structural member for a machine tool which comprises the steps of: (a) dispersing in a mass of a hardenable nonmetallic substance, a multiplicity of discrete solid objects forming reinforcing elements and in an amount comprising 0.5 to 30% by weight of the resulting compos

1. A method of making a structural member for a machine tool which comprises the steps of: (a) dispersing in a mass of a hardenable nonmetallic substance, a multiplicity of discrete solid objects forming reinforcing elements and in an amount comprising 0.5 to 30% by weight of the resulting composition; (b) shaping said composition into a configuration corresponding to the shape of the structural member and including at least a machine tool bed and a machine tool column extending upwardly from said bed; and (c) hardening the mass of the shaped composition to form the structural member as a rigid body with said elements distributed throughout said column and bed. 2. The method defined in claim 1 wherein the amount of said elements distributed in said body is not greater than 15% by weight thereof. 3. The method defined in claim 1 wherein said mass is cement, ceramic or concrete. 4. The method defined in claim 3 wherein said elements are selected from the group which consists of metals, carbon, ceramics, cermets and plastics. 5. The method defined in claim 1 wherein said elements consist at least in part of magnetic meterial. 6. The method defined in claim 1, further comprising the steps of embedding a frame in said body prior to the hardening thereof. 7. A machine tool support member comprising a bed, a column rising from said bed, and a head extending from said column and overlying said bed, said head, column and bed being formed unitarily from a hardened mass of nonmetallic material selected from the group which consists of cement, ceramic and concrete containing dispersed and embedded therein, 0.5 to 15% by weight of discrete solid objects selected from the group which consists of metals, carbon, ceramics, cermets and plastics and reinforcing said mass without rendering the same significantly thermally or electrically conductive thereto. 8. The machine tool support defined in claim 7, further comprising a metallic skeleton embedded in said mass and extending into said head, bed and column.